SB2013041805 - Permissions, Privileges, and Access Controls in xen (Alpine package)
Published: April 18, 2013
Security Bulletin ID
SB2013041805
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-1922)
The vulnerability allows a local non-authenticated attacker to read and manipulate data.
qemu-nbd in QEMU, as used in Xen 4.2.x, determines the format of a raw disk image based on the header, which allows local guest OS administrators to read arbitrary files on the host by modifying the header to identify a different format, which is used when the guest is restarted, a different vulnerability than CVE-2008-2004.
Remediation
Install update from vendor's website.